I did this with my previous car, a 2016 Subaru BRZ.
I e-mailed three dealerships in town. I said I wanted a BRZ, Limited trim, Black, with a manual transmission, and asked what their lowest price was. MSRP for this configuration I believe was $29K. One dealership didn't answer at all, the second offered $29K, the third offered $26K and included all the dealer-installed options like the cargo mat for the drunk, auto-dimming mirror with HomeLink, and wheel locks.
I definitely went with the third dealer. Didn't even feel the need to haggle any more than that.
I e-mailed three dealerships in town. I said I wanted a BRZ, Limited trim, Black, with a manual transmission, and asked what their lowest price was. MSRP for this configuration I believe was $29K. One dealership didn't answer at all, the second offered $29K, the third offered $26K and included all the dealer-installed options like the cargo mat for the drunk, auto-dimming mirror with HomeLink, and wheel locks.
I definitely went with the third dealer. Didn't even feel the need to haggle any more than that.